N-(4-bromophenyl)-2-[4-(2,4-dioxo-3-propyl-1,5-dihydropyrrolo[3,2-d]pyrimidin-6-yl)phenoxy]acetamide

8-Cyclopentyl-1,3-diethyl-3,7-dihydro-purine-2,6-dione

1,3-dipropyl-8-cyclopentylxanthine

3-(6-(piperidin-1-yl)-9H-purin-2-yl)phenol

4-(6-piperidin-1-yl-7H-purin-2-yl)phenol

3-Benzyl-9-phenyl-1-pyridin-4-yl-pyrazolo[1',5':1,6]pyrimido[4,5-d]pyridazin-4(3H)-one

3-Benzyl-9-phenyl-1-pyridin-3-yl-pyrazolo[1',5':1,6]pyrimido[4,5-d]pyridazin-4(3H)-one

propan-2-yl 4-(furan-2-yl)-2-methyl-1,4-dihydropyrimido[1,2-a]benzimidazole-3-carboxylate

3-Benzyl-9-phenyl-6-n-propyl-1-pyridin-4-yl-pyrazolo[1',5':1,6]pyrimido-[4,5-d]pyridazin-4(3H)-one

3-Benzyl-6-methyl-9-phenyl-1-pyridin-4-yl-pyrazolo[1',5':1,6]pyrimido-[4,5-d]pyridazin-4(3H)-one

3-Benzyl-6-methyl-9-phenyl-1-pyridin-3-yl-pyrazolo[1',5':1,6]pyrimido-[4,5-d]pyridazin-4(3H)-one

2-(3-chlorophenyl)-6-piperidin-1-yl-7H-purine

3-Benzyl-6-ethyl-9-phenyl-1-pyridin-4-yl-pyrazolo[1',5':1,6]pyrimido-[4,5-d]pyridazin-4(3H)-one

2-[4-(2,4-dioxo-3-propyl-1,5-dihydropyrrolo[3,2-d]pyrimidin-6-yl)phenoxy]-N-(4-fluorophenyl)acetamide

2-(3-chlorophenyl)-6-(4-methylpiperazin-1-yl)-7H-purine

3-Benzyl-1-methyl-9-thiophen-3-yl-pyrazolo[1',5':1,6]pyrimido[4,5-d]pyridazin-4(3H)-one

3-Benzyl-1-(3-fluorophenyl)-9-phenylpyrazolo[1',5':1,6]pyrimido[4,5-d]pyridazin-4(3H)-one

3-benzyl-1-methyl-9-phenylpyrazolo[1',5':1,6]pyrimido[4,5-d]pyridazin-4(3H)-one

3-Benzyl-1-(4-fluorophenyl)-9-thiophen-3-yl-pyrazolo[1',5':1,6]pyrimido[4,5-d]pyridazin-4(3H)-one

2-(4-chlorophenyl)-6-piperidin-1-yl-7H-purine

3-[6-(4-methylpiperazin-1-yl)-7H-purin-2-yl]phenol

3-Benzyl-6-ethyl-9-phenyl-1-pyridin-3-yl-pyrazolo[1',5':1,6]pyrimido-[4,5-d]pyridazin-4(3H)-one

6-[4-[[3-(4-bromophenyl)-1,2,4-oxadiazol-5-yl]methoxy]-2-methoxyphenyl]-1,3-dimethyl-5H-pyrrolo[3,2-d]pyrimidine-2,4-dione

3-Benzyl-1-(3-fluorophenyl)-9-thiophen-3-yl-pyrazolo [1',5':1,6]pyrimido[4,5-d]pyridazin-4(3H)-one

3-Benzyl-6-isopropyl-9-phenyl-1-pyridin-4-yl-pyrazolo[1',5':1,6]pyrimido-[4,5-d]pyridazin-4(3H)-one

3-Benzyl-1-(4-fluorophenyl)-9-phenylpyrazolo[1',5':1,6]pyrimido[4,5-d]pyridazin-4(3H)-one

3-Benzyl-6-methyl-9-phenyl-1-pyridin-4-ylpyrazolo[1',5':1,6]pyrimido[4,5-d]pyridazin-4(3H)-thione

2-(4-chlorophenyl)-6-(4-methylpiperazin-1-yl)-7H-purine

4-[6-(4-methylpiperazin-1-yl)-7H-purin-2-yl]phenol

1-Methyl-9-phenyl-3-(1-phenylethyl)pyrazolo[1',5':1,6]pyrimido-[4,5-d]pyridazin-4(3H)-one

3-Benzyl-1,9-diphenyl-6-n-propylpyrazolo[1',5':1,6]pyrimido[4,5-d]pyridazin-4(3H)-one

2-(3,4-dichlorophenyl)-6-(4-methylpiperazin-1-yl)-7H-purine

2-[9-methyl-6-(4-methylpiperazin-1-yl)purin-2-yl]phenol

4-(2-{[5-amino-2-(furan-2-yl)-[1,2,4]triazolo[1,5-a][1,3,5]triazin-7-yl]amino}ethyl)phenol

3-Benzyl-1,9-diphenylpyrazolo[1',5':1,6]pyrimido[4,5-d]pyridazin-4(3H)-one

3-Benzyl-1,9-diphenyl-6-methylpyrazolo[1',5':1,6]pyrimido[4,5-d]pyridazin-4(3H)-one

3-Benzyl-1-chloro-6-methyl-9-phenylpyrazolo[1',5':1,6]pyrimido[4,5-d]pyridazin-4(3H)-one

6-Ethyl-9-phenyl-3-(1-phenylethyl)-1-methylpyrazolo[1',5':1,6]pyrimido-[4,5-d]pyridazin-4(3H)-one

3-Benzyl-1,9-diphenyl-6-ethylpyrazolo[1',5':1,6]pyrimido[4,5-d]pyridazin-4(3H)-one

2-(2,5-dichlorophenyl)-6-(4-methylpiperazin-1-yl)-7H-purine

1,6-Dimethyl-9-phenyl-3-(1-phenylethyl)pyrazolo[1',5':1,6]pyrimido-[4,5-d]pyridazin-4(3H)-one

3-Benzyl-1-(3-fluorophenyl)-6-methyl-9-phenylpyrazolo[1',5':1,6]pyrimido[4,5d]pyridazin-4(3H)-one

7-Benzyl-4,9-dimethyl-2-phenyl-7H-3,3a,5,7,8-pentaaza-cyclopenta[a]naphthalen-6-one